JPS627717Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an antifreeze device that has functions such as issuing an alarm or automatically opening a valve in order to prevent damage to water pipes and water supply equipment due to freezing.

If water pipes or water supply equipment freeze or are damaged due to freezing due to the onset of cold waves in winter,
The impact on daily life is significant, and the human and property damage required to repair the damage is enormous.

For this reason, various antifreeze measures can be considered, but since a complete antifreeze measure requires a large amount of material and construction costs, antifreeze measures that can withstand normal temperatures are taken, and supplementary measures by users are required. The reality is that measures are being taken. One method for this is to pass a small amount of water through water pipes and water supply equipment when freezing is a concern. Although this is effective as a countermeasure against freezing, it is difficult to judge whether or not freezing has occurred. Water may be wasted unnecessarily or at the wrong time. Particularly at night, it is often too late to take water drainage measures.

The present invention eliminates the above-mentioned drawbacks, and is designed to prevent freezing by accurately determining when freezing occurs and taking measures such as issuing an alarm or automatically opening a valve. The purpose is to provide equipment.

Hereinafter, the present invention will be explained with reference to the drawings.

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is a partially cutaway side view of the first embodiment of the present invention, and FIG. 2 is a partially cutaway side view of the first embodiment of the present invention. The top view of the example and FIGS. 3A and 3B are diagrams for explaining the operation of the first embodiment of the present invention.

In Figures 1 to 3, 1 is a cylindrical metal container, 1' is a fin, 2 is a metal body, and 3 is a soft O
Ring, 4 is a step, 5 is a bolt, 6 is a lid, 7 is a micro switch, 8 is a board, 9 is a lever, 10 is a sliding ring, 11 is a structure, 12 is a screw, 13 is a handle, 14 is a screw hole , 15 is a power source, 16 is a protruding member, B○ is a buzzer, L○ is a signal light, and V○ is a solenoid valve.

A fin 1' is provided on the outer periphery of the cylindrical metal container 1, and a large-diameter hole and a small-diameter hole are provided inside the fin 1', and a step 4 is formed at the boundary between the fins 1'. A screw hole is bored in the bottom of the cylindrical metal container 1, and a bolt 5 is screwed into the screw hole. A metal body 2 is fitted into a large diameter hole on the upper side of the cylindrical metal container 1. A soft O-ring 3 is provided on the outer periphery of the metal body 2, and this O-ring 3 is in close contact with the inner surface of the cylindrical metal container 1. The upper side of the metal body 2 has a conical shape, and a screw hole 14 is bored at the upper end thereof, and a handle 13 is screwed into the screw hole 14. A threaded portion is provided on the outer periphery of the upper end of the cylindrical metal container 1, and a lid 6 is screwed into this threaded portion. One end of an L-shaped substrate 8 is fixed to the lid 6, and the other end of the L-shaped substrate 8 is fixed to a structure 11, such as a wall, with screws 12. Board 8
A micro switch 7 is mounted on the surface.
At this time, the sliding ring 10 of the lever 9 of the micro switch 7 is brought into contact with the conical portion of the metal body 2.

Water is sealed inside the cylindrical metal container 1.
To fill water, remove the bolt 5, put the tip of the cylindrical metal container 1 into the water, grab the handle 13 and pull up the metal body 2, and the water will flow into the cylindrical metal container 1.
sucked inside. Next, the metal body 2 is pushed down to expel air from the inside of the cylindrical metal container 2, and the bolt 5 is
is screwed into the screw hole, and the cylindrical metal container 1 is screwed into the lid 6. This state is shown in FIG. 3A.

In the state shown in FIG. 3A, the lever 9 of the micro switch 7 is in a normal state, so the power supply 15 is
Power is not supplied to the buzzer B○, signal light L○, and solenoid valve V○. When the temperature drops below zero, the water sealed inside the cylindrical metal container 1 begins to freeze.
Since its volume increases, the metal body 2 is pushed upwards. Therefore, the lever 9 is pressed by the taper of the conical part of the metal body 2, the protruding member 16 is pushed, the movable contact in the micro switch 7 moves, and the buzzer B○, the signal light L○, and the solenoid valve V ○ is activated. This state is shown in FIG. 3B.

By providing the fins 1' on the outside of the cylindrical metal container 1, the following effects can be obtained. That is, by providing several fins 1', the area exposed to the outside air becomes larger. Therefore, compared to water pipes and water supply equipment, the temperature of the cylindrical metal container 1 changes more quickly following the outside temperature. Therefore, when the outside temperature falls below zero degrees, the water sealed in the cylindrical metal container 1 begins to freeze before the others, and its volume increases.

FIG. 4 is a vertical cross-sectional side view of a second embodiment of the present invention. In FIG. 4, 20 is an automatic valve device;
21 is a cylindrical metal container, 21' is a spiral fin,
22 is a metal body, 23 is an O-ring, 24 is a stepped portion, 2
5 is an operating rod, 26 is a mounting pipe, 27 is a main valve, 28 is a main valve chamber, 29 is a pressure spring, 30 is a hole for applying water pressure, and 31 is a pilot valve.
A valve, 32 is a water pressure control hole, 33 is a faucet,
Reference numeral 34 indicates a connecting pipe portion.

In the embodiment of FIG. 4, the cylindrical metal container 2
A spiral fin 21' is provided on the outer periphery of the fin 1. As will be described later, when ice in the cylindrical metal container 21 is thawed, water is flowed from the top, but this water flows along the spiral fins 21' and a long water path is obtained, so that the thawing effect is improved. increase The metal body 22 is fitted into the upper part of the cylindrical metal container 21,
The space between the two is made liquid-tight by an O-ring 23. The downward movement of the metal body 22 is restricted by the step 24 . The metal body 22 has an operating rod 25 at the top.
is installed protrudingly. This operating rod 25 is for controlling the pilot valve 31.

The attachment pipe part 26 has a threaded part inside, and is screwed into a branch pipe of a water pipe (not shown). The automatic valve device 20 has a main valve chamber 28 in which a main valve 27 is housed. The main valve chamber 28 communicates with the internal space of the attachment pipe section 26 via a water pressure application pore 30. The main valve 27 is pressed by a pressure spring 29. A water pressure control hole 3 is provided between the accommodation chamber of the pilot valve 31 and the main valve chamber 28.
2 is provided. When the pilot valve 31 is pressed against its seat, the pressure in the main valve chamber 28 and the water pressure in the interior space of the mounting tube 26 are equal, so that the main valve 2
7 is pressed against the tip of the connecting pipe 34, and the connecting pipe part 3
4 is closed. When the pilot valve 31 leaves its seat, the main valve chamber 28 communicates with the interior space of the faucet portion 33 and the main valve chamber 2
8's internal pressure decreases. When the internal pressure decreases, the main valve 27 is pushed up by water pressure and the connecting pipe 34 opens. As a result, water is taken in from the attachment pipe section 26, and this water flows out from the faucet section 33.

The embodiment of FIG. 4 operates as follows. When the outside temperature drops below zero, the cylindrical metal container 21
The water inside freezes and the metal body 22 is pushed up. This causes the pilot valve 31 to move away from the valve seat and the pressure in the main valve chamber 28 to drop.
When the pressure in the main valve chamber 28 decreases, the main valve 27 is pushed up by the water pressure, and the water in the water pipe flows through the attachment pipe section 26, the connecting pipe section 34 and the faucet section 33. The water flowing out from the faucet portion 33 flows along the spiral fins 21' of the cylindrical metal container 21, and the ice in the cylindrical metal container 21 is thawed. When the ice in the cylindrical metal container 21 is thawed, the metal body 22 returns to its original position and the valve device 20 is closed.

As is clear from the above explanation, the antifreeze device of the present invention performs an operation that matches the onset of freezing of water pipes and water supply equipment compared to devices equipped with temperature sensors, so there is no need for wasteful water flow or preventive measures. Therefore, it is possible to take reasonable antifreeze measures. Further, the antifreeze device of the present invention has advantages such as being inexpensive, not requiring a complicated circuit, having excellent durability, and being easy to handle.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway side view of the first embodiment of the present invention, Figure 2 is a top view of the first embodiment of the present invention, and Figure 3 is a top view of the first embodiment of the present invention.
Figures A and B are diagrams for explaining the operation of the first embodiment of the present invention, and Fig. 4 is a vertical cross-sectional side view of the second embodiment of the present invention. 1... Cylindrical metal container, 1'... Fin, 2...
...Metal body, 3...Soft O-ring, 4...Step part,
5... Bolt, 6... Lid, 7... Micro switch, 8... Board, 9... Lever, 10... Sliding ring, 11... Structure, 12... Screw, 13...
Handle, 14...screw hole, 15...power supply, 16...
Projecting member, B○...buzzer, L○...signal light, V○...
... Solenoid valve, 20 ... Automatic valve device, 21 ... Cylindrical metal container, 21' ... Spiral fin, 22 ...
...Metal body, 23...O ring, 24...Step part, 2
5... Operating rod, 26... Mounting pipe section, 27... Main valve, 28... Main valve chamber, 29...
...Press spring, 30... Pore for applying water pressure, 31...
Pilot valve, 32...pore for water pressure control,
33...Faucet part, 34...Connection pipe part.

Claims (1)

[Scope of utility model registration request] A cylindrical metal container having fins on the outer periphery and a screw hole bored in the bottom, a metal body slidably inserted inside the upper part of the cylindrical metal container, and a set screw screwed into the screw hole. and an actuating means that operates when the metal body moves to a predetermined position, and the actuating means is configured to operate when water sealed in the cylindrical metal container freezes. Freeze protection equipment.